Grain-harvester



momma.

LA VERNE W. NOYES.

GRAIN HARVESTER.

No. 358,063. Patented Feb. 22,1887.

UNITED STATES PATENT OFFICE. 1

LA VERNE W. NOYES, OF CHICAGO, ILLINOIS.

GRAlN-HARVESTER.

SPECIFICATION forming part of Letters Patent No. 358,063, dated February 22, 1887.

Application filed December 28, 1885. Serial No. 186,924.

.To all whom it may concern:

Be it known that 1, LA VERNE W. NoYEs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvementsin Grain-Harvesters, which are fully set forth in the following specification.

This invention relates to the platform-adj usting devices of a harvester, and comprises mechanism for raising and lowering and mechanism for tilting.

In the drawings, Figure 1 is an inner front perspective of the drive-wheel and frame and a portion of the front sill of the platform, showing the adjusting mechanism which con stitutes my invention. Fig. 2 is an outer side detail elevation of the tilt-adjusting lever and its connections.

A is the drive-whcel.

B is the wheel-frame. C is the main frame. These two frames, which are adapted by means hereinafter described to be locked rigidly to gether, constitute the harvester-frame, which is supported on and adapted to be tilted over the drive-wheel axle. The wheel-frame is substantially a cranked shaft, having the drivewheel A journaled on the wrist B and the main frame 0 pivoted on the parallel wrist B", said wrists being on opposite sides of the connecting crank-arm B Rigid, and preferably integral, as illustrated, with the arm 13 of the wheel-frame Bis formed the segment-rack B", having its upper end braced by the radial arm B also integral with the arm 13.

The main frame 0 comprises the platfornr sill G and the bracket O", secured upon said sill. Said bracket comprises the arm C, which extends to and is pivoted on the wrist B of the wheel -frame B, and the upright curved arm 0, which stands up alongside of the segment 13* and is recessed to fit and receive the same, striding and clasping its curved edge. Said upright curved arm 0 has near its upper end two bearings, 0' a, in

which is journaled the upright shaft D, and.

between which there is fixed on said shaft the endless screw or worm D', which meshes with the rack 13*. Said shaft D has a crank-hair dle, D, at its upper end, by means of which it may be rotated.

The tongue E is pivoted to the wheel-frame,

(No model.)

preferably at the wrist 13 as illustrated. It is provided with the bracket 0, secured to it on the under side, and thereon, at e, is pivoted the lever E, having at the upper end the k notched segment E. To said lever, at the center e" of said notched segment, is pivoted the lever E and between the pivots e and 6 there is connected the link E which has the other end pivoted to the lower part of the main frame 0, as at c, on the platformsill G. For stiffness said link has rigid with it the brace E extended obliquely inward from the point e and connected to the pivot c on the sill O in line with the pivot c.

The draft-chain F is secured to the extension b at the upper end of rack 13*, and is also secured upon the stud e jutting from the inner side of the lever E and extends thence forward for the purpose of being connected to the driving-power. To the outer side of the lever E the slide-bar E is retained by means of the stud e, passing through the slot in said slide-bar and having its head overlapping the edges of the slot. The lever E has also the projection e near its upper end, pierced to receive the rounded end E of the slide-barE, and around said rounded end and underthe projection e is coiled the spring E. The lower end of the slide'bar E is formed as a tooth, E adapted to engage the notches of the notched segment E and the spring E tends to force said tooth into such engage ment. Both the lever E and the slide-barE areprovided at the upper end with the horizontal handles It and 13, respectively, the former overhanging the latter and only a short distance above it, so that both may be grasped at once by the hand.

The raising and lowering of the machine is effected by the screw D, rotated by the shaft D by means of the crank-handle D, said screw engaging the rack B and rocking the frame, of which the said arm 0', having the bearings of said screw-shaft D, forms a part, over its pivot, the wrist B of the frame 13. The main frame being connected by the link E and lever E to the tongue E, and the tongue being connected to the wheel-frame B at the pivot of said frame to the frame .0, the raising or lowering of the main frame by rocking it over said pivot causes the pole to rock said wheelframe over the wrist B, which is journaled in the drive-wheel. Both rocking motions being in the same directioni. 6., either both upward or both downwardit is evident that if the tongue were lifted or lowered bodily by the movement of the main frame the tilt of the machine would not be at all affected by the raising and lowering; but, instead of being so lifted or lowered, the tongue has one fixed point, its bearing in the neck-yoke. The effect, therefore, of the vertical adjustment by the means above described would be to swing the machine up or down through an arc whose center is the bearing of the tongue in the neck 1 5 yoke. Such movement would slightly change the"tilt of the machine but for the auto matic correction, which will be now described. Raising the machine tends to tilt it forward or down, and lowering it tends to tilt it backward or up; but raising the machine throws the extension 1) forward, and the draft being upon the chain F, the forward movement of the extension 11* causes or allows the levers E and E secured together by the engagement of the tooth E in the notched segment E and moving as one piece, to rock forward over the pivot 6''. Such forward motion causes the link E to draw forward and upward the lower front edge of the-frame Oviz., the'front sill, 3o O that is, to tilt the machine up. Similarly the lowering of the machine, which tends directly to tilt it up, operates, by means of the connection described, to correct said tendency and tilt it down an equal amount, so that, practically, no change of tilt is caused by the raising and lowering. The entire harvesterframe, comprising the wheel-frame and the 7 main frame, locked in any desired relation by the engagement of the screw D in the rack 13', may be tilted, as desired, independently of the raising and lowering, by means of the lever E Both handles E and E being grasped, and the slide-bar E pulled up to release its tooth ,E' from the segment E the lever E being rocked forward over its pivot 0 the stud 6 passing through the draft-chain F, becomes the actual pivot of its motion, and joint at 6 moves rearward, the lever E rocking over its pivot e on the bracket 0 and letting back the link E and the machine is tilted down or forward. Rocking the lever E backward reverses all the above-describcd movements and tilts the machine upward or backward.

It will be seen that the levers E" and E operate as a single-jointed lever, acting as one lever when the tooth and segment are ongaged.

The general construction of the frames and the connection of the frames together, and of the tongue to the said frames, and of the draftchain to the wheel -frame are shown and claimed in my application for patent filed June 29, 1885, Serial No. 170,141; and I do not herein claim anything except the modifications of the structure from that therein shown, which are the construction of the screw having its shaftjournaled in the main frame and meshing with the rack on the wheel-frame, as the means of raising and lowering, and the construction of the jointed lever E E, as the means for tilting; and in respect to these features before set forth, the drive-wheel, the wheelframe pivoted at the center of the wheel, the main frame pivoted to the wheel-frame eccentrically to the wheel and adjustably secured rigid with the wheel-frame, the tongue pivoted to the main frame, the jointed lever pivoted to the pole and connected from one side of the joint to the main frame and from the other side of the joint to the wheel-frame, and means for adj ustably securing said jointed lever rigid at said joint.

2. In combination,substantiall y as set forth, the harvester-frame comprising both the bearings of the drive-wheeland the support for the cutting mechanism and pivoted at the center of the drive-wheel, the tongue hinged to the frame, the jointed lever pivoted to the pole and connected from one of its members to the frame at a point lower than the drivewheel axle and from the other member to a point on the frame higher than the axle, and means for adj ustably securing said jointed lever rigid at said joint.

3. In combination, substantially as and for the purpose set forth, the lever E, pivoted to the tongue and having the notched segment E, the lever E, pivoted to the lever E at the center of said segment, the links connecting said levers, respectively, with the harvester frame, and the locking slide-bar E, adapted to engage the notches of the segment.

In testimony whereof I have hereunto set my hand, in the presence of two witnesses, at Chicago, Illinois, this 23d day of December, A. D. 1885.

LA TERNE \V. NOYES.

Attcst:

C. H. THORPE,

CHAS. S. BURTON.

1. In combination, substantially as herein-' 1' 

